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13831-49-7

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13831-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13831-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,8,3 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13831-49:
(7*1)+(6*3)+(5*8)+(4*3)+(3*1)+(2*4)+(1*9)=97
97 % 10 = 7
So 13831-49-7 is a valid CAS Registry Number.

13831-49-7Relevant articles and documents

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Viktorova,E.A. et al.

, (1966)

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Use of 1,1,1,3,3,3-Hexamethyldisilazane and N,O-Bis-(trimethylsilyl)acetamide in Aromatic Claisen Rearrangement: An Efficient Method for Preventing Abnormal Claisen Rearrangement

Fukuyama, Tohru,Li, Tangqing,Peng, Ge

, p. 2145 - 2148 (2007/10/02)

Both 1,1,1,3,3,3-hexamethyldisilazane and N,O-bis-(trimethylsilyl)acetamide have been shown to suppress the formation of abnormal aromatic Claisen rearrangement products by efficiently trapping the incipient normal products as their silyl ethers under mil

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